CVE-2021-34110

Exp

WinWaste.NET version 1.0.6183.16475 has incorrect permissions, allowing a local unprivileged user to replace the executable with a malicious file that will be executed with "LocalSystem" privileges.

Published: 2021-07-08 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-34110 is rated High Exploit Risk (70.9/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.78%). 3 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2021-34110

EDB-ID Source Kind Published Link
50083 exploit_db edb 2021-07-02 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2021-34110

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-21 1.88% 0.78% -1.11%
2 2026-03-30 1.97% 1.88% -0.09%
3 2025-11-21 — 1.97% —

Full EPSS history (22 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-34110

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 5.9 [email protected]
4.6 2.0 MEDIUM
AV:L/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 3.9 6.4 [email protected]

Weakness enumeration for CVE-2021-34110

Affected software / configurations for CVE-2021-34110

Vendor Product Version Raw CPE
nica winwaste.net 1.0.6183.16475 cpe:2.3:a:nica:winwaste.net:1.0.6183.16475:*:*:*:*:*:*:*

References for CVE-2021-34110

URL Tags
http://nica.it Vendor Advisory
http://winwastenet.com Broken Link URL Repurposed
https://exchange.xforce.ibmcloud.com/vulnerabilities/204780 Third Party Advisory VDB Entry
https://packetstormsecurity.com/files/163335/WinWaste.NET-1.0.6183.16475-Local-Privilege-Escalation.html Exploit Third Party Advisory VDB Entry
https://www.exploit-db.com/exploits/50083 Exploit Third Party Advisory VDB Entry
cvelogic Threat Intelligence